#define _CRT_SECURE_NO_WARNINGS 1 
#include <stdio.h>
int main()
{
	printf("hello");
	printf("%d\n", 123);
	char arr1[] = { 'a','b','c' };
	char arr2[] = "abc";
	char arr3[] = { 'a','b','c','\0' };
	printf("%s\n", arr1);
	printf("%s\n", arr2);
	printf("%s\n", arr3);
	return 0;
}